Home / 12,420.66-18,634.11-4,101.15

Finding the Fourth Proportional to 12,420.66, 18,634.11 and 4,101.15

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Solution

The fourth proportional to 12,420.66, 18,634.11 and 4,101.15 is: 6,152.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420.66 : 18,634.11 = 4,101.15 : x
  2. Step 2: Convert to fraction form
    12,420.66/18,634.11 = 4,101.15/x
  3. Step 3: Cross multiply
    12,420.66x = 18,634.11 × 4,101.15
  4. Step 4: Simplify right side
    12,420.66x = 76,421,280.23
  5. Step 5: Solve for x
    x = 76,421,280.23/12,420.66
  6. Step 6: Final answer
    x = 6,152.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.